| 分形多孔介质中的热传导 |
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| 引用本文： | 张东晖,施明恒.分形多孔介质中的热传导[J].工程热物理学报,2004,25(1):112-114. |
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| 作者姓名： | 张东晖 施明恒 |
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| 作者单位： | 东南大学动力工程系,江苏,南京,210096;东南大学动力工程系,江苏,南京,210096 |
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| 基金项目： | 国家重点基础研究发展规划资助项目(No.G2000026303) |
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| 摘 要： | 本文将多孔介质视为由骨架和空隙组成的二元混合介质,研究了多孔介质中的热传导过程,发现分形结构中的导热规律与孔隙的分布有关,存在着与实体导热完全不同的特征。计算表明,分形介质中的导热过程除了与基质(骨架)的分形维数有关外,还与基质率以及反映介质中热量传递动态过程有关。
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| 关 键 词： | 分形 多孔介质 热传导 |
| 文章编号： | 0253-231X(2004)01-0112-03 |
| 修稿时间： | 2002年12月10 |
HEAT CONDUCTION IN FRACTAL POROUS MADIA |
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| ZHANG Dong-Hui SHI Ming-Heng.HEAT CONDUCTION IN FRACTAL POROUS MADIA[J].Journal of Engineering Thermophysics,2004,25(1):112-114. |
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| Authors: | ZHANG Dong-Hui SHI Ming-Heng |
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| Abstract: | Porous material can be considered as one kind of binary mixture consisted by skeleton and pores. In this paper heat conduction in fractal porous media is studied. It is found that heat conduction in fractal porous media is dependent on the pore structure; and it has different characteristics from solid body. The calculated results show that heat conduction process in fractal porous media depends on the fractal dimensions, mass fraction rate and the other factors which reflect the pore structure and distribution as well as heat conduction passage inside the material. |
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| Keywords: | fractal porous media heat conduction |
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